How to get the unix timestamp from UIDatePicker

Question

如何从UIDatePicker获取Unix时间戳

Answer 1

UIDatePicker *picker = ...;
NSTimeInterval t = [picker.date timeIntervalSince1970];

You can subsequently use the NSTimeInterval as a numeric primitive type, which at the time of writing is a double . You may want to cast it to an int explicitly, depending on the use case.